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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
the RHS today and get 12 months for the price of 9
Other common names
Chinese meadow rue
Thalictrum dipterocarpum misapplied
Thalictrum can be rhizomatous or tuberous perennials with ternately or pinnately divided, often attractive foliage, and panicles or racemes of small flowers with showy stamens and sometimes large colourful petal-like sepals
T. delavayi is an upright herbaceous perennial to 1.5m, with large leaves divided into many small oblong leaflets, and large open panicles of lilac-mauve flowers 2cm in width, with prominent cream stamens
Toxicity Contact with foliage may irritate the skin
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect East-facing or West-facing
MoistureMoist but well-drained, Poorly-drained
SoilClay, Loam, Chalk
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in moist, humus-rich soil in partial shade. May need staking. See staking perennials for further advice.
Propagate by seed in pots in a cold frame as soon as seed is ripe or in early spring. Propagate by division in spring as new growth begins
Suggested planting locations and garden types
Flower borders and beds Cut Flowers
Cottage & Informal Garden Wildlife Gardens
Pruning Cut down stems once flowering is over
Pests Generally pest free
May be subject to powdery mildews in dry conditions
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.